Mamoun M. Bader , Phuong-Truc T. Pham , Salma S. Abu Khodair , Maysoon I. Saleh , S.-L. Zheng (Editor)
{"title":"Benzo[a][1,4]benzothiazino[3,2-c]phenothiazine","authors":"Mamoun M. Bader , Phuong-Truc T. Pham , Salma S. Abu Khodair , Maysoon I. Saleh , S.-L. Zheng (Editor)","doi":"10.1107/S2414314624003572","DOIUrl":null,"url":null,"abstract":"<div><p>The title compound crystallizes in space group <em>P</em>2<sub>1</sub>/<em>c</em> with four molecules in the asymmetric unit.</p></div><div><p>The title compound, C<sub>22</sub>H<sub>12</sub>N<sub>2</sub>S<sub>2</sub>, crystallizes in space group <em>P</em>2<sub>1</sub>/<em>c</em> with four molecules in the asymmetric unit. The heterocyclic molecule is quasi-planar with a dihedral angle between the phenyl rings on the periphery of the molecule of 1.73 (19)°. Short H⋯S (2.92 Å) and C—H⋯π [2.836 (3) Å] contacts are observed in the crystal with shorted <em>π</em>–π stacking distances of 3.438 (3) Å along the <em>b</em> axis. Surprisingly, and unlike a closely related material, this molecule readily forms large crystals by sublimation and by slow evaporation from dichloromethane. The maximum absorbance in the UV-Vis spectrum is at 533 nm. Emission was measured upon excitation at 533 nm with a fluorescence λ<sub>max</sub> of 658 nm and cutoff of 900 nm. <span><figure><span><img><ol><li><span>Download : <span>Download high-res image (244KB)</span></span></li><li><span>Download : <span>Download full-size image</span></span></li></ol></span></figure></span> </p></div>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"9 4","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11074542/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IUCrData","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/org/science/article/pii/S2414314624000282","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
The title compound crystallizes in space group P21/c with four molecules in the asymmetric unit.
The title compound, C22H12N2S2, crystallizes in space group P21/c with four molecules in the asymmetric unit. The heterocyclic molecule is quasi-planar with a dihedral angle between the phenyl rings on the periphery of the molecule of 1.73 (19)°. Short H⋯S (2.92 Å) and C—H⋯π [2.836 (3) Å] contacts are observed in the crystal with shorted π–π stacking distances of 3.438 (3) Å along the b axis. Surprisingly, and unlike a closely related material, this molecule readily forms large crystals by sublimation and by slow evaporation from dichloromethane. The maximum absorbance in the UV-Vis spectrum is at 533 nm. Emission was measured upon excitation at 533 nm with a fluorescence λmax of 658 nm and cutoff of 900 nm.
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